I have never seen a pump group whic is legit. Usually the owners of these groups making the "calls" just want to dump on their followers on a way higher price.
It is not a pump group, it is only a channel where you get signals for trade.
I paid for the channel, I am using the signals and it´s legit. I have saved money, as original channel asks for so much higher amount of money. Also, I am promoting the channel as I get 60% of new subscriptions.
So if you interested contact @pelukas_vgo, tell you come because a Gelucho´s post on bitcointalk.